CN101474870A - Method for lacquering and repairing damaged plastic parts of motor vehicle without scraping with atomic ash - Google Patents
Method for lacquering and repairing damaged plastic parts of motor vehicle without scraping with atomic ash Download PDFInfo
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- CN101474870A CN101474870A CNA2008101622641A CN200810162264A CN101474870A CN 101474870 A CN101474870 A CN 101474870A CN A2008101622641 A CNA2008101622641 A CN A2008101622641A CN 200810162264 A CN200810162264 A CN 200810162264A CN 101474870 A CN101474870 A CN 101474870A
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Abstract
The invention discloses a putty-free paint spraying restoration method for the damage of a plastic part of a motor vehicle. The method is characterized by comprising the following operation techniques: (1) cleaning, (2) differentiating materials, (3) welding and shaping, polishing by a rasping machine, grinding by an electric abrasive finishing machine, and baking, (4) spraying plastic primer, (5) spraying putty primer, (6) polishing, (7) spraying finishing paint, and (8) spraying varnish. The technique of the invention does not adopt putty, solves the problems radically, achieves the effects of attractive appearance and firmness, shortens the maintenance time, reduces the maintenance cost, saves the resources, and is beneficial to the state and citizens.
Description
Technical field
The present invention relates to a kind of plastic parts of motor vehicle method for repairing damaged.
Background technology
The working of plastics that is used on the motor vehicle damages reparation, and the motor vehicle plastics simply can be divided into thermoplastic and thermosetting plastics.As: bumper, front fender, middle net, liner, side bar, door side plate, door internal decoration plate, instrument desk, panel, headlight, taillight, fog lamp, water tank, water tank tank bracket, air intake branch of the engine, engine hood panel, storage battery, fuel tank, door trim or the like.Some is the resistant to elevated temperatures plastics of oil resistant, as: PE, PA, also some interior trim is to need just keeping in repair again of foreskin bag suede.These are worth at least hundreds of unit, several thousand yuan, the plastic parts of motor vehicle of units up to ten thousand at most, in case damage and to abandon trade-in, special of part is because can't buy, have to import, need to wait for a long time, if directly replacing, maintenance cost is higher, not meeting China's national situation, generally all is to keep in repair the back continue to use, also repair the plastic parts of motor vehicle that comes out no matter hardness, toughness, attractive in appearance on, durability all can and new part compare favourably.And cost is very low, use the present invention to the maintenance plastic parts of motor vehicle promptly can be in operation the speed short time can also reduce maintenance cost, economize on resources, benefit the nation and the people.Had only in the past with iron wire bundle, clip and reinforced on plastics, also useful glue is sticking, electric soldering iron scalds and wipes off with the atom ash, time one is long like this, working of plastics cracking and then atom ash paint is also followed cracking, just do not play maintenance effect, effect attractive in appearance far from and the method for thoroughly dealing with problems.With technology of the present invention is to tackle the problem at its root, and reaches attractive in appearance, firm effect, the shortening time, reduce maintenance cost, and economize on resources.
Summary of the invention
Damages such as fracture, distortion, scratch, big small size incompleteness in various degree can appear after bumping in the process of moving in plastic parts of motor vehicle.What plastic parts of motor vehicle need spray paint is divided into: bumper, front fender, middle net, side bar, door side plate, instrument desk, panel or the like.But service parts: headlight, liner, taillight, fog lamp, water tank, water tank tank bracket, air intake branch of the engine, engine hood panel, storage battery, fuel tank, door trim or the like.Some is the resistant to elevated temperatures plastics of oil resistant, and also some interior trim is to need just keeping in repair again of foreskin bag suede.
Main purpose of the present invention is: it is poor that the solution prior art adopts the atom ash to wipe existing maintenance effect off, and repairing efficiency is grown and weak point, thereby develops a kind of damaged plastic parts of motor vehicle without scraping with atomic ash method for lacquering and repairing.
Above-mentioned purpose of the present invention is mainly solved by following technical proposals: a kind of damaged plastic parts of motor vehicle without scraping with atomic ash method for lacquering and repairing is characterized in that: comprise following operating procedure:
(1) damage is cleaned to plastic parts of motor vehicle: the earth and the dirt that carry out clean surface with liquid detergent or washing powder.
(2) material is differentiated: at first will understand the motor vehicle plastics, also will differentiate that plastics can be divided into thermoplastic and thermosetting plastics on the motor vehicle to the working of plastics that damages; Thermoplastic can be divided into: the one, and pure plastics, pure plastics just are meant and do not add pure plastics of being called of any material in the middle of plastics, as: PP, PE, ABS and ASA (it is a copolymer, just ratio difference on synthesizing formula), PA, POM, PC etc.; The 2nd, synthetic plastic: as PP+EPDM etc.The 3rd, thermoset plastic: be to add fillers such as glass fibre, carbon fiber as reinforcing material in plastics, with further mechanics, the electric property of improving plastics, this novel polymer matrix composites are commonly referred to reinforced plastics.Reinforced plastics is divided into thermoplasticity reinforced plastics and thermoset reinforcd plastic (SMC: glass fiber reinforced plastics composite material), be used on the motor vehicle reinforced plastics as (the water tank tank bracket of Passat, Bora, POLO) etc.
Material differentiate as: ABS (Acrylonitrile-butadiene-styrene Copolymer), ASA (acrylonitrile-styrene-acrylate copolymer), PP (polypropylene), PP+EPDM (polypropylene+ethylene propylene diene rubber), PA (polyamide is also referred to as nylon), PE (PEF), POM (polyformaldehyde), PUR (Polyurethane) PBT (poly terephthalic acid succinic acid), GRP (fiberglass reinforced plastics) or the like.The way of available burning also, go to hear it smell, go to see the color of burning or be placed on the proportion of seeing it in the water that it is sticking to bring examination with welding rod.
(3) weld shaping:
Can divide three parts, shaping, welding, the incomplete method of operating of big small size are as follows:
A. shaping: the situation that all can occur being out of shape after general motor vehicle plastics bump in the process of moving protrudes as large-area depression or middle part.Operation be use from the negative earlier heat gun (1500W) or plastic welding gun (1000W-1500W) carry out from the inner surface heat treated, be heated to can eject till, if from only can be all the more hot sunken more dark of outer surface heating.Working of plastics variable thickness sample heating-up temperature is also different, again along ejecting from the inside with hand, because plastics are resilient, some thin working of plastics also can oneself eject in the process of heating, protrude working of plastics and also can carry out heat treated with above identical method, just will be from the front with hand inside straightening to smooth.For another example some injustice of the high end carry out Local treatment again, also the local available plastic welding gun of some sand holes plates (this is in order to exempt from the processing method of scraping with atomic ash later on) back and forth, till smooth.
B. welding: for the restorative procedure of thermoplastic: the most handy pure plastic welding rod (as: PA, PP, PE, POM) etc. during welding.Synthetic plastic can adopt the modified plastics welding rod to weld, and so just can guarantee absolute weld strength, fastness and toughness.Different materials will select for use different welding rod special for special (black, white, ash, milk are white, yellow etc.) to weld.Just can not bond to together because material is different.The welding equipment that uses can be selected 1000W plastic welding gun or 1500W Welding plate for use, temperature is transferred to about 300 ℃-400 ℃, material thickness difference will select for use different temperature to weld, if very thin working of plastics (as: door trim of minicar, liner), temperature will be transferred to about 60-70 degree during maintenance, again plastic welding rod is polished to the thickness identical with service parts with sanding machine, if not welding rod does not also melt service parts to being which is out of shape, and thin material is not advocated and beaten " V " type groove.In orthopedic service parts inner surface fracture place, beat " V " type groove with sanding machine, groove depth is 1/2 of a service parts material.Earlier in about 2-3 centimeters typings of breach place weldering, wait the welding of carrying out next step after the cooling again.Left hand takes the welding rod right hand to take plastic welding gun during welding, and angle becomes 80 degree angles at welding rod with solder side, and the welding gun angle is about 40 degree.Welding rod special for special with various identical materials is welded in " V " type groove again, the welding gun muzzle is from about 1.5-2 centimeters of welds, carry out in the middle of two-sided (welding rod and service parts) heating " V " type that welding rod is pressed in groove slowly, the breach place opens the horizontal again reinforcing of " V " type groove together again.If, beating " V " type groove in the middle part greater than 20 centimeters, length carries out horizontal consolidation process.Use the same method again and carry out the outer surface welding, the method of this technology is to begin welding from inner surface earlier, weld from outer surface earlier if select, working of plastics can be out of shape or caves in during heating, which the time will wipe off with the atom ash, otherwise from inner surface, working of plastics will protrude, so distortion also can be on the outer surface at last, and a bit going down with hand if any the irregular place at the high end during surface soldered outside will be very smooth attractive in appearance again.
Reparation for thermoplasticity reinforced plastics: method of operating and thermoplastic method are similar, to weld with the PP welding rod of modification, so should on welding rod, add heat a bit at when welding operation plastic welding gun, and can not be as thermoplastic plastics two-sided heating operation.
The restorative procedure of c. big small size incompleteness: with the working of plastics of same model, big small size one of saw identical shaped, that radian is arranged splices where is best; If do not have identical shaped, can a prefabricated identical material, carry out identical shaped, radian (can use the welding gun heat treated), weld again, on one side want shaping on one side to weld, method of operating is the same with thermoplastic.
The sanding machine polishing: carry out surface treatment with 80 purpose grinding wheels, smooth rugged processing.
Sander polishing: carry out surface finish with 12000 rev/mins sanders.Sander adopts 80 orders-320 purpose sand paper, available water mill or the dry grinding up to smooth surface as newly.
Baking: carry out surperficial place to go burr with plastic welding gun or grilled gun.
(4) plastic-blasting material priming paint: spray plastics priming paint, need to wait about 5-10 minutes, fixed by outdoor temperature, do hurry up summer.
(5) spray grey priming paint: spray grey priming paint, need to wait about 5-10 minutes, fixed by outdoor temperature, do hurry up summer.The effect of spraying the low lacquer of ash is there be not sand holes in order to have checked, can the local a bit grey priming paint of spraying of sand holes arranged more if any dit.
(6) polishing: with 400-500 order waterproof abrasive paper sandings, up to very smooth, without any irregular place, the high end.
(7) topcoating: spray the paint identical, need wait until about 3-10 minutes, need spray one to three time with service parts.
(8) spray varnish: spray varnish again, play light.
Therefore, beneficial effect of the present invention is: technology of the present invention never adopts the atom ash, is to tackle the problem at its root, and reaches attractive in appearance, firm effect, and can shorten maintenance time, reduces maintenance cost, economizes on resources, and benefits the nation and the people.
The specific embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment:
The damaged maintenance process process of breaking of minicar front bumper:
The damaged rent of bumper cleans with liquid detergent; The useless plastic parts of motor vehicle of a prefabricated identical material, carry out identical shaped, radian is standby, open " V " type groove at the breach place, earlier plastic parts of motor vehicle is carried out the welding typing of breach place, black PP welding rod with special use welds, the Welding plate of 1500W is transferred to 300 ℃ with temperature, weld from two breaches earlier, typing, some burn-on earlier on the surface afterwards, occur distortion inside when preventing to weld, " V " type that inner surface is opened slot welding step by step connects again, on one side want shaping on one side to weld, the breach place opens the welding that " V " type groove is reinforced one horizontal stroke again, carries out the outer surface welding with identical method then.Carry out surface treatment with 80 purpose grinding wheels, smooth rugged processing.Carry out surface finish with 12000 rev/mins sander again, sander adopts 80 orders-320 purpose sand paper, with water mill up to smooth surface as newly.Carry out surperficial place to go burr with plastic welding gun or grilled gun.Plastic-blasting material priming paint etc. 5 minutes were sprayed grey priming paint etc. 5 minutes, again with 400 order waterproof abrasive paper sandings, up to very smooth, without any irregular place, the high end.Spray the finish paint identical, wait 5 fens and spray again second time with service parts.Spray at last varnish promptly accuse the maintenance finish.
Claims (1)
1. damaged plastic parts of motor vehicle without scraping with atomic ash method for lacquering and repairing is characterized in that: comprise following operating procedure:
(1) cleans: earth and the dirt that damages the working of plastics surface cleaned with liquid detergent or washing powder;
(2) material is differentiated: the working of plastics that damages is carried out material differentiate;
(3) weld shaping:
A. shaping: carry out heat treated from inner surface with heat gun or plastic welding gun, temperature is extruded with hand from the inside about 50-70 degree again;
B. welding:
Welding rod, different materials select for use different welding rod special for special to weld;
Soldering appliance is selected 1000W plastic welding gun or 1500W Welding plate for use;
Welding temperature is between 300 ℃-400 ℃;
Welding method:
Before the welding, welding rod sanding machine sanding;
Greater than 3mm, in orthopedic service parts inner surface fracture place, beat " V " type groove with sanding machine for service parts thickness, " V " type groove depth is 1/2 of a service parts thickness;
During welding, earlier, carry out next step welding after cooling again, open one of the reinforcing of " V " type groove horizontal stroke again at the breach place in about 2-3 centimeters typings of breach place weldering;
Use the same method then and carry out the outer surface welding;
C. incomplete part shaping:
With same material prefabricated one, to carry out identical shaped and radian welds again, method is the same;
The sanding machine polishing: carry out surface treatment with 80 purpose grinding wheels, smooth rugged processing;
Sander polishing: carry out surface finish with 12000 rev/mins sanders; Sander adopts 80 orders-320 purpose sand paper, and water mill or dry grinding all can;
Baking: carry out surperficial place to go burr with plastic welding gun or grilled gun, temperature is 50 ℃-70 ℃.
(4) plastic-blasting material priming paint: spray plastics priming paint, need to wait 5-10 minutes;
(5) spray grey priming paint: spray grey priming paint, need to wait 5-10 minutes;
(6) polishing:,, do not have irregular place, the high end up to very smooth with 400-500 order sand paper sandings;
(7) topcoating: spray the paint identical, need to wait spray again in 3-10 minutes second time, spray to three time with service parts;
(8) spray varnish: topcoating sprays varnish again after 3-10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101622641A CN101474870B (en) | 2008-11-17 | 2008-11-17 | Method for lacquering and repairing damaged plastic parts of motor vehicle without scraping with atomic ash |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101622641A CN101474870B (en) | 2008-11-17 | 2008-11-17 | Method for lacquering and repairing damaged plastic parts of motor vehicle without scraping with atomic ash |
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| Publication Number | Publication Date |
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| CN101474870A true CN101474870A (en) | 2009-07-08 |
| CN101474870B CN101474870B (en) | 2011-06-15 |
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| CN2008101622641A Expired - Fee Related CN101474870B (en) | 2008-11-17 | 2008-11-17 | Method for lacquering and repairing damaged plastic parts of motor vehicle without scraping with atomic ash |
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Cited By (11)
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| CN104760307A (en) * | 2015-04-10 | 2015-07-08 | 中北大学 | Method for repairing failed plastic filter plate of filter press due to wear and breakage |
| CN104847682A (en) * | 2015-04-24 | 2015-08-19 | 华能伊敏煤电有限责任公司 | Repair technology for draught fan shell of electric wheel dump truck for open pit mine |
| CN104859163A (en) * | 2015-06-01 | 2015-08-26 | 惠州Tcl移动通信有限公司 | Restoration method of plastic casing of electronic equipment |
| CN105196574A (en) * | 2015-10-27 | 2015-12-30 | 上海车功坊汽车服务有限公司 | Repair process for nonmetal member of motor vehicle |
| CN105479782A (en) * | 2015-11-25 | 2016-04-13 | 量镀（上海）新材料科技股份有限公司 | Method for repairing automobile electroplating piece |
| CN106078474A (en) * | 2016-08-14 | 2016-11-09 | 合肥汇通控股股份有限公司 | A kind of automotive plastic parts glossing |
| CN106142539A (en) * | 2015-03-29 | 2016-11-23 | 上海车功坊汽车服务有限公司 | Plastic parts of motor vehicle welding method |
| CN106142600A (en) * | 2015-03-29 | 2016-11-23 | 上海车功坊汽车服务有限公司 | Plastic parts of motor vehicle restorative procedure |
| CN107009086A (en) * | 2017-04-13 | 2017-08-04 | 李非 | The method for maintaining of body part |
| CN110015271A (en) * | 2019-04-29 | 2019-07-16 | 李顺 | A kind of Auto Instrument desk without putty restorative procedure |
| CN110616644A (en) * | 2019-09-20 | 2019-12-27 | 中交路桥华南工程有限公司 | Method for repairing protective outer sleeve |
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2008
- 2008-11-17 CN CN2008101622641A patent/CN101474870B/en not_active Expired - Fee Related
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| CN106142600B (en) * | 2015-03-29 | 2019-03-08 | 上海车功坊智能科技股份有限公司 | Plastic parts of motor vehicle restorative procedure |
| CN106142539B (en) * | 2015-03-29 | 2018-12-14 | 上海车功坊智能科技股份有限公司 | Plastic parts of motor vehicle welding method |
| CN106142539A (en) * | 2015-03-29 | 2016-11-23 | 上海车功坊汽车服务有限公司 | Plastic parts of motor vehicle welding method |
| CN106142600A (en) * | 2015-03-29 | 2016-11-23 | 上海车功坊汽车服务有限公司 | Plastic parts of motor vehicle restorative procedure |
| CN104760307B (en) * | 2015-04-10 | 2017-03-08 | 中北大学 | The restorative procedure of the plastic filter plate of filter press of abrasion and fracture failure |
| CN104760307A (en) * | 2015-04-10 | 2015-07-08 | 中北大学 | Method for repairing failed plastic filter plate of filter press due to wear and breakage |
| CN104847682A (en) * | 2015-04-24 | 2015-08-19 | 华能伊敏煤电有限责任公司 | Repair technology for draught fan shell of electric wheel dump truck for open pit mine |
| CN104859163A (en) * | 2015-06-01 | 2015-08-26 | 惠州Tcl移动通信有限公司 | Restoration method of plastic casing of electronic equipment |
| CN105196574A (en) * | 2015-10-27 | 2015-12-30 | 上海车功坊汽车服务有限公司 | Repair process for nonmetal member of motor vehicle |
| CN105479782A (en) * | 2015-11-25 | 2016-04-13 | 量镀（上海）新材料科技股份有限公司 | Method for repairing automobile electroplating piece |
| CN106078474A (en) * | 2016-08-14 | 2016-11-09 | 合肥汇通控股股份有限公司 | A kind of automotive plastic parts glossing |
| CN107009086A (en) * | 2017-04-13 | 2017-08-04 | 李非 | The method for maintaining of body part |
| CN107009086B (en) * | 2017-04-13 | 2020-06-23 | 李非 | Method for repairing vehicle body parts |
| CN110015271A (en) * | 2019-04-29 | 2019-07-16 | 李顺 | A kind of Auto Instrument desk without putty restorative procedure |
| CN110616644A (en) * | 2019-09-20 | 2019-12-27 | 中交路桥华南工程有限公司 | Method for repairing protective outer sleeve |
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| Publication number | Publication date |
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| CN101474870B (en) | 2011-06-15 |
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Granted publication date: 20110615 Termination date: 20201117 |